Using the null cipher is causing us some problems with 0.9.7c. Not sure
how important this is but for one it causes at least one 0 byte malloc
that causes efence to barf:

#0  0x4032d5f1 in kill () from /lib/libc.so.6
#1  0x40017eb6 in EF_Abort () from /usr/lib/libefence.so
#2  0x4001741a in memalign () from /usr/lib/libefence.so
#3  0x40017a6e in malloc () from /usr/lib/libefence.so
#4  0x401d9910 in default_malloc_ex (num=0, file=0x402ab1e7 "evp_enc.c", 
    line=151) at mem.c:79
#5  0x401d9fcc in CRYPTO_malloc (num=0, file=0x402ab1e7 "evp_enc.c",
line=151)
    at mem.c:304
#6  0x4022f48a in EVP_CipherInit_ex (ctx=0x4289af74, cipher=0x402c1cc0, 
    impl=0x0, key=0x427d1000 <Address 0x427d1000 out of bounds>, 
    iv=0x427d1000 <Address 0x427d1000 out of bounds>, enc=1) at
evp_enc.c:151
#7  0x40185ced in ssl3_change_cipher_state (s=0x42227ef4, which=18)
    at s3_enc.c:334
#8  0x4018089e in ssl3_connect (s=0x42227ef4) at s3_clnt.c:382
#9  0x401911b6 in SSL_do_handshake (s=0x42227ef4) at ssl_lib.c:1827
#10 0x4019c419 in ssl_ctrl (b=0x4226bfc0, cmd=101, num=0, ptr=0x0)
    at bio_ssl.c:417
#11 0x4021df70 in BIO_ctrl (b=0x4226bfc0, cmd=101, larg=0, parg=0x0)
    at bio_lib.c:324

/Sam
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